Artist. The name seems to come from Landolt C.
Japanese name: ランドルトたまき (Landolt Tamaki)
Circle & site name: ルート十二面体 (Root 12-men tai, lit. Root 12-hedron)
Joke name: 髭⑬〒岐
https://www.pixiv.net/users/226254
https://www.pixiv.net/stacc/water_waterfall
https://twitter.com/LdtTAMAKI
https://twitter.com/intent/user?user_id=179527653
https://nijie.info/members.php?id=59178
https://pawoo.net/@LdtTAMAKI
https://root12hedron.fanbox.cc
https://www.pixiv.net/fanbox/creator/226254
https://sketch.pixiv.net/@water_waterfall
http://root12hedron.blog.fc2.com
http://twitpic.com/photos/LdtTAMAKI
